Home / 3,903.04-5,387.80-2,784.16

Finding the Fourth Proportional to 3,903.04, 5,387.80 and 2,784.16

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Solution

The fourth proportional to 3,903.04, 5,387.80 and 2,784.16 is: 3,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.04 : 5,387.80 = 2,784.16 : x
  2. Step 2: Convert to fraction form
    3,903.04/5,387.80 = 2,784.16/x
  3. Step 3: Cross multiply
    3,903.04x = 5,387.80 × 2,784.16
  4. Step 4: Simplify right side
    3,903.04x = 15,000,497.25
  5. Step 5: Solve for x
    x = 15,000,497.25/3,903.04
  6. Step 6: Final answer
    x = 3,843.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.